Apparatus for facilitating the embossing of perforated shoe parts



March 12, 1940- ca. c. LOUCKS El AL 93,

APPARATUS FOR FACILITATING THE EMBOSSING 0F PERFORATED SHOE PARTSOriginal Filed Nov. 29, 1937 lnventuri. and EEuTqE' lllL uur: s

Jnhn R.H.W

Fltturnegs.

Patented Mar. 12, 1940 UNITED STATES I APPARATUS FOR FACILITATING THEEM- BOSSING or PERFORATED SHOE PARTS George C. Loucks and John R. H.Ward,

Milwaukee, Wis.

Original, application November 29, 1937, Serial No. 177,046. Divided andthis application April 11, 1938, Serial No. 201,465

1- Claim.

This invention appertains to shoes and shoe manufacture, and moreparticularly to a novel device for facilitating the proper centering ofshoe blanks relative to an embossing die, incident to the forming of aventilated shoe having the appearance of platted leather strips, theapplication being a division of our original application SerialNo.177,0,46, filed November 29, 1937 and which matured into Patent No.2,118,255 on May 24, 1938.

In the forming of shoe blanks which simulate the appearance of plattedleather strips, it is highly essential that the perforated upper blankis positively located relative to the embossing die, and that theembossing die is accurately uided down over the shoe blank.

It is, therefore, one of the salient objects of the present invention toprovide a platen or base having upstanding locating pins for extendingthrough certain of the openings in the perforated shoe upper part, sothat the .upper part will be held against movement and to furtherprovide guide openings in the embossing die for receiving said pinsduring the lowering of the die, whereby the die will be accuratelyguided down over the shoe part, and, thus, correctly emboss the leatherrelative to the performations in said upper part.

With these and other objects in view, the invention consists in thenovel construction, arrangement, and formation of parts, as will behereinafter more specifically described, claimed, and illustrated in theaccompanying drawing, in which drawing: I

Figure 1 is a top plan View of an upper blank after the perforating orhole-cutting operation, with the upper blank positively held relative tothe embossing die by locating pins.

Figure 2 is an enlarged, fragmentary sectional 'view taken substantiallyon the line 22 of Figure 1, looking in the direction of the arrows,showing the locating or guide pins passing through certain of theopenings for holding the upper and guiding the embossing die in place.

Figure 3 is a fragmentary, top plan view of the upper blank after theperforating and embossing operations.

Figure 4 is an enlarged, fragmentary, detail sectional view illustratingthe upper after the perforations have been made therein and before theembossing operation, with the upper leather reinforced by a fabriclining.

Figure 5 is an enlarged, fragmentary, transverse sectional view throughthe upper blank after the perforating and embossing operations,

Referring to the drawing in detail, wherein similar reference charactersdesignate corresponding parts throughout the several views, the letter Ugenerally indicates an upper blank, and this blank is cut out of thehide in accordance with ordinary shoe-making practice. 1

The leather upper U can be reinforced, if so desired, by a fabric liningIll, as clearly shown in Figures 4 and 5, and where this lining is used,the leather and the lining areum'ted together by a suitable adhesive.

After the upper U has been blanked from the hide, the same is perforatedwith a plurality of square-shaped openings 16. Hollow, squareperforating knives (not shown) are utilized for this purpose, and it isto be noted that the squareshaped openings are arranged in equallyspaced parallel intersecting rows.

The perforated upper blanks U are now placed on a table or platen l ofan embossing device. The table or platen has formed thereon or securedthereto relatively long upstanding guide pins l2. These guide pins aresquare-shaped in cross-section, so as to snugly fit in certain of 1 theopenings l6 and to extend above the upper blank. As illustrated inFigure 1, pairs of spaced guide pins are used at the front, back, andintermediate portions of theupper blank. The embossing die 9 is nowbrought down over the upper blank U. The die embosses on the outersurface of the upper blank a design II, which takes the form of plattedleather strips.

It is essential to the invention to accurately locate the die 8 relativeto the intersecting rows of square-shaped openings I6, so that thesimulated platted strips will be correctly disposed relative to theopenings. Hence, the die 8 has formed therein guide openings 9 forreceiving the guide pins l2. Thus, as the die 8 is guided down over theupper blank, the same is positively positioned relative to the openings12, and lateral shifting movement of the embossing die 8 and the upperblank U is prevented.

By referring toFigures 3 and 5, it can be seen that the embossingprovides alternate raised portions l3 and depressed portions l4, and thestrap simulations are arranged between the intersecting rows of openingsIS, with the openings l6 located at the corners where the stra throughcertain of the perforations in the leather and beyond the upper face ofthe leather for positively locating the leather on the platen, and anembossing die having guide openings for receiving the locating andguiding pins and movable toward and away from the platen, the pins andguide openings holding the die in predetermined relation to theperforated design in the leather when the die engages the leather.

GEORGE C. LOUCKS. JOHN R. H. WARD.

